Delivering single-function workshops and conferences will require a lot of energy and focus, because the organizer should be able to focus on delivering content, interact with the participants, and with the presence of the system foot, move the PowerPoint slides in a timely manner. . For this reason, many prefer to use sprinklers to do this. These accessories, which function similarly to remote control devices, provide users with easier connectivity (or similar software) to connect to a computer.

The Rii R900’s (Professional Digital Presenter With Printer) inbuilt tools include a variety of options, in addition to the right and left keys, the Air Mouse activation / deactivation switch, the laser pointer, the four-way keys, the R-Click menu button, and the Home, Enter and Escape keys. Meanwhile, a scroll wheel is also placed on the right side of the device where it can perform PageUp, PageDown and Enter operations (the Logitech R400 only has laser pointer keys, slide before and after, F5 / Esc and Blank Screen plus a power key) . Perhaps the only mistake that appears here is the F5 key (fullscreen login, or the start of slideshow on PowerPoint), which is considered strange for the manufacturer to ignore it. However, using the Air Mouse Feature, you can enter slideshows.